Cheap flights from Ontario to Milwaukee (ONT - MKE)

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The best prices from Ontario to Milwaukee Milwaukee-Mitchell are usually found in August or October, booked 18 days in advance, depart on a Tuesday or Friday and return on a Monday

How to find the cheapest flight from
Ontario (ONT) to Milwaukee (MKE)

All the information you need to plan the best ONT to MKE flight in 2021: compare Ontario to Milwaukee flight prices with the expected peak season, weather and rainfall in Milwaukee.
ONT - MKE
Price
$198 - $414
MKE
Temperature
21.2 - 73.4 °F
MKE
Precipitation
1.4 - 4 inches

Popular in

February

High demand for flights, 19% potential price rise

Cheapest in

August

Best time to find cheap flights, 41% potential price drop

Average price

$356

Average for round-trip flights in November 2021

Round-trip from

$198

From Ontario to Milwaukee Milwaukee-Mitchell

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Ontario to Milwaukee?

Travelers have found that booking a Monday departure is the best way to save up to 56% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

What is the cheapest month to fly from Ontario to Milwaukee?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, August can be a great choice for travel to Milwaukee. Flights to Milwaukee from Ontario in August are about $308 on average during August, but can be found for as low as $139.

How far in advance should I book a flight from Ontario to Milwaukee?

To save on the cost of your flight from Ontario to Milwaukee, book at least 32 days before your planned departure. Booking around this time can save you about 19% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $293 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $356.

When is the cheapest time to fly from Ontario to Milwaukee (ONT - MKE)?

One of the essential ways to save on airfare from Ontario to Milwaukee is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 25% on airfare.

Cheap flights from Ontario to Milwaukee in November, December 2021

The best prices found for ONT to MKE flights for November, December
27 Dec - 4 Jan
$195pp
ONT
Ontario
Multiple Airlines
 
1 STOP
MKE
Milwaukee Milwaukee-Mitchell
MKE
Milwaukee Milwaukee-Mitchell
Frontier
 
1 STOP
ONT
Ontario
15 Dec - 21 Dec
$248pp
ONT
Ontario
Frontier
   
2 STOPS
MKE
Milwaukee Milwaukee-Mitchell
MKE
Milwaukee Milwaukee-Mitchell
Frontier
 
1 STOP
ONT
Ontario
27 Dec - 4 Jan
$278pp
ONT
Ontario
Multiple Airlines
   
2 STOPS
MKE
Milwaukee Milwaukee-Mitchell
MKE
Milwaukee Milwaukee-Mitchell
Multiple Airlines
 
1 STOP
ONT
Ontario

Ontario to Milwaukee 2022 flight deals

Cheap flights to Milwaukee from Ontario found for next year
27 Dec - 4 Jan
$195pp
ONT
Ontario
Multiple Airlines
 
1 STOP
MKE
Milwaukee Milwaukee-Mitchell
MKE
Milwaukee Milwaukee-Mitchell
Frontier
 
1 STOP
ONT
Ontario
15 Dec - 21 Dec
$248pp
ONT
Ontario
Frontier
   
2 STOPS
MKE
Milwaukee Milwaukee-Mitchell
MKE
Milwaukee Milwaukee-Mitchell
Frontier
 
1 STOP
ONT
Ontario
27 Dec - 4 Jan
$278pp
ONT
Ontario
Multiple Airlines
   
2 STOPS
MKE
Milwaukee Milwaukee-Mitchell
MKE
Milwaukee Milwaukee-Mitchell
Multiple Airlines
 
1 STOP
ONT
Ontario

Last minute flights from Ontario to Milwaukee

Late deals on round-trip flights to Milwaukee from Ontario, departing today and this week
6 Dec - 11 Dec
$520pp
ONT
Ontario
Alaska Airlines
 
1 STOP
MKE
Milwaukee Milwaukee-Mitchell
MKE
Milwaukee Milwaukee-Mitchell
Alaska Airlines
 
1 STOP
ONT
Ontario
6 Dec - 11 Dec
$614pp
ONT
Ontario
Alaska Airlines
 
1 STOP
MKE
Milwaukee Milwaukee-Mitchell
MKE
Milwaukee Milwaukee-Mitchell
Alaska Airlines
   
2 STOPS
ONT
Ontario
6 Dec - 11 Dec
$634pp
ONT
Ontario
Alaska Airlines
   
2 STOPS
MKE
Milwaukee Milwaukee-Mitchell
MKE
Milwaukee Milwaukee-Mitchell
Alaska Airlines
   
2 STOPS
ONT
Ontario

One-way flights to Milwaukee-Mitchell from Ontario

The cheapest one-way flights from Ontario to Milwaukee
1:30 pm - 1:28 pm
Frontier
1 Stop
21h 58m
ONT - MKE
Frontier
$225
JustFly
1:00 am - 1:15 pm
Alaska Airlines
2 Stops
10h 15m
ONT - MKE
Alaska Airlines
$347
Alaska Airlines
8:20 am - 4:36 pm
United Airlines
1 Stop
6h 16m
ONT - MKE
United Airlines
$353
United

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Ontario</span> to <span class="emphasized">Milwaukee</span> flights.

Flight FAQs

From Ontario to Milwaukee

Which airlines flying from Ontario to Milwaukee Milwaukee-Mitchell have flexible cancellations due to COVID-19?

American Airlines, United Airlines, and Delta are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from Ontario to Milwaukee for under $200 on Cheapflights?

Yes, there are multiple flights from Ontario to Milwaukee for under $200. The cheapest flight booked recently is on Frontier for just $168, but on average you can expect to pay $292.

Are there last-minute flights available from Ontario to Milwaukee for under $600?

There are currently 5+ open flights from Ontario to Milwaukee within the next 7 days for less than $600.

What are the cheapest airlines flying from Ontario to Milwaukee round-trip?

Frontier, at $168, was found to be the cheapest airline from Ontario to Milwaukee.Alternate airlines to your destination round-trip include American Airlines and Delta. Frontier is currently priced 50% below the average price you’ll pay for this route.

What are the cheapest airlines to fly from Ontario to Milwaukee one-way?

For one-way options, check prices for Frontier. According to our data, you can fly for as low as $70. Users have also found prices from $111 and $200 on American Airlines and Alaska Airlines, respectively.

What are the most popular airlines that fly from Ontario to Milwaukee?

Major Airline, American Airlines and Delta are the most popular airlines when flying from Ontario to Milwaukee.

What are the cheapest flights from Ontario to Milwaukee?

On average you can expect to pay $389 for a flight from Ontario to Milwaukee. The cheapest flight overall is $81 while the most popular route, (Ontario - Milwaukee Milwaukee-Mitchell) is currently priced at $154.

COVID Restrictions

View COVID Travel Restrictions for Milwaukee, WI

Do I need a COVID test to fly to Milwaukee from Ontario?

Information is based on travel restrictions for travel to Milwaukee Milwaukee-Mitchell within the United States

Most visitors from Ontario need to provide a negative COVID-19 test result and/or quarantine to enter Milwaukee Milwaukee-Mitchell.

COVID-19 testing requirements
Visitors from Ontario must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Milwaukee Milwaukee-Mitchell.

Quarantine requirements
Visitors from Ontario are not required to quarantine after entering Milwaukee Milwaukee-Mitchell.

Do I need a test to fly back to Ontario from Milwaukee?

Returning to Ontario from Milwaukee Milwaukee-Mitchell

COVID-19 testing requirements
Visitors from Milwaukee Milwaukee-Mitchell must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Ontario.

Quarantine requirements
Visitors from Milwaukee Milwaukee-Mitchell are not required to quarantine after entering Ontario.

Hide COVID Travel Restrictions for Milwaukee, WI

Alternative routes for Ontario to Milwaukee

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Milwaukee

Things to know before you go - useful duration and weather info for your trip from Ontario to Milwaukee.
Average temperature for November in Milwaukee
48.2 °F
Avg rainfall for November in Milwaukee
2.4 ″

Airports servicing Ontario

Airports servicing Milwaukee

Top 4 airlines flying from Ontario to Milwaukee Milwaukee-Mitchell

The chart below displays the airlines Cheapflights users traveling from Ontario to Milwaukee choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Frontier
$112 $242 No cancel fee 62%
United Airlines
$141 $322 No cancel fee 69%
American Airlines
$159 $400 No cancel fee 71%
Delta
$184 $387 No cancel fee N/A
Weekly flight availability
from Ontario to Milwaukee
See how many times per day planes take to the skies headed from Ontario to Milwaukee.
Sunday
0 flights
Monday
0 flights
Tuesday
0 flights
Wednesday
1 daily flight
Thursday
1 daily flight
Friday
1 daily flight
Saturday
0 flights
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